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5 Sheets-Sheet I. A. A. ROYAU. CANDLE MOLDING MACHINE.

(No Model.)

No. 475,521. Patented May- 24, 1892.

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Patented May 24, 1892.

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CANDLE MOLDING MACHINE. No. 475,521.

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CANDLE MOLDING MACHINE.

No. 475,521. Patented May 24, 1892.

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CANDLE MOLDING MACHINE.

Patented May 24, 1892.

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No. 475,521. Patented May 24, 1892.

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UNITED STATES PATENT EETcE.

ALEXANDRE ALPHONSE ROYAU, OF CI-IATILLON-SOUS-BAGNEUX, NEAR PARIS,FRANCE.

CANDLE-MOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 475,521, dated May 24,1892.

Application filed September 10, 1891. Serial No. 405,250. (No model.)

To all whom it may concern:

Be it known that I, ALEXANDRE ALPHONSE ROYAU, of the city ofOhatillon-Sousl3agneux, near Paris, France, have invented an ImprovedCandleMolding Machine, of which the following is a full, clear, andexact description.

Candle-molding machines usually necessitate considerable labor and areslow in Opera t10n.

This invention relates to an improved machine for molding candles which,notwithstanding its relatively small dimensions, is capable of aconsiderable output with little laborsay of turning out two hundred andfifty candles every quarter of an hour when worked by one man only.

Reference is to be had to the accompanying drawings, forming part ofthis specification, wherein Figure 1 is a side elevation of acandlemolding machine embodying my improvement. Fig. 2 is an endelevation of the same. Fig. 3 is a vertical section of the mold-chestand candle-sheaths, showing the candle in the mold. Fig. 4 is a similarview showing the candle in the sheath. Fig. 5 is a similar view, thecandle being in the sheath and the piston-rod drawn down, leaving themold ready for another filling. Fig. 6 is a top plan View of Fig. 3.Fig. 7 is an enlarged central vertical section of a candle-sheath withthe holding-flap closed down. Fig.8 is a similar view, the flap beingthrown up. Fig. 9 is a cross-section on line 9 9, Fig. 7. Fig. 10 is anenlarged longitudinal and cross section of a multiple supply-cock, andFig. 11 shows the mechanism for discharging the candles from the molds.

The principal characteristic of the machine is the rapidity with whicheither hot or cold water can be introduced into the mold-chest. In orderto instantly till the mold-chest with water at the desired moment, thefollowing arrangement is employed:

The machine comprises two parts symmetrically arranged, as shown in Fig.2, each consisting of a mold-box a, combined with a system of pipes forthe supply of water thereto. At the upper part of the machine-frame aremounted two tanks 1) for supplying water to the two mold-chests. Inorder to admit water around the whole of the molds c at once, a seriesof pipes 01 connect each reservoir Z) with the cylindrical casing e of amultiple-way cock 6', extending the whole length of the machine, thehollow plug f of which is made in two parts and operated from oppositeends to avoid torsion thereof, as shown in Fig. 10. From the casing cextend as many pipes g as there are transverse rows of molds in thechest, all controlled by the plug f, the water, it cold, serving to coolthem suddenly for discharging the molded candles, orif hot toheat themolds, as required. The water contained in the separate reservoirs 1)passes through pipes d, casing 6, cocks e, and pipes g, connected to themold-chests, and thence around the molds c,'Figs. 3, 4, and 5.

In order that the water, whethercold or hot, shall reach the molds atthe required temperature, the latter are inclosed concentrically intubes 72., having an intervening annularspace to contain the water. Allthe tubes h are fixed to a plate 2', as shown in Figs. 3, i, and 5, sothat the water arriving by the pipes gis first distributed over theplate 2' and then descends through the tubes h around the molds, andfinally escapes through the slits k at the lower part of tubes h intothe mold-chest a, from which it is drawn ofi by a cock Z, Fig. 2.

Upon a longitudinal plate m, Figs. land 11, are mounted as many |-shapedbrackets n as there are molds, forming a row in the 1ongitudinaldirection, to which brackets 11 are connected as many tubularpiston-rods 0 as there are molds in the transverse direction, the endsof the plate m resting upon arms 19, Figs. 1 and 11, provided with aguide-collar q, sliding on a vertical guide-rod "amounted between twocross-pieces s, Fig. 2.

At each end of the machine a cross-head 25 works in guides and is movedup and down by means of a screw-shaft a, operated by a pair ofbevel-pinions 'v and winch-handle w, these cross-heads t serving toelevate the plates m and rods 0 for discharging the molds. Thecross-heads 25 may be made to lift either one or both plates m,according as the molds of one or both chests are to be discharged at onetime. For this purpose the said crossheads t are connected with theplates m, to be lifted by means of latches y, which are caused to engagewith lugs 2 on the guide-collars q, as shown in Fig. 11.

Afterthe molds are filled the layer of wax in the mold-trough isremoved, for which purpose the side 1, Figs. 1 to 5, of the trough isturned down on its hinge 2 and the wax out OK flush with the molds. Thecross-heads t are then raised so as to force up all the piston-rods 0and push the molded candles into the sheaths 3. (Represented in Figs. 3,4, 5, 7, 8, and 9.) The candles on entering these sheaths raise forkedspring-flaps 4, as shown in Fig. 4, which come beneath and retain thecandles, the sheaths 3 holding the candles a sufficient time to givetime for the spring-flaps to engage beneath them. The sheaths aremounted in series upon forks 5, which rest on a bar 6, extending Withinthe whole length of the mold-chest. After the candles have been raisedinto the sheaths 3 the rods 0 are again lowered by moving down thecross-bars m, after which a fresh quantity of wax is run in beforecutting the wicks of the previous batch of candles contained in sheaths3, in order to keep the wicks stretched and centralin the molds c. Thewicks w are drawn from a reel or other suitable device through anopening in the side of the tubular rods 0, and thence through thevertical center of the molds c, as shown in Figs. 3 and 5. When thefinished candle has passed into the sheaths at the top of the mold, thewick is out at the lower or tapering portion of the candle and thecandle can then be removed from the sheaths. As the rods or pistons 0descend they leave the molds free and clear for the reception of anothercharge of candle-stock.

By surrounding the candle-molds with an annular chamber to receive thewater from the tanks on top of the machine the candlemolds can be keptat any temperature desired,

the liquid being enabled to pass from the annular chamber throughopenings in, the bottom of the surrounding tube, into and out of themold-chamber, as heretofore described.

It is evident that the form of the tanks 1), the number of pipes g, andmolds c, &c., as Well as the dimensions of the various parts, may beconsiderably varied without departing from the nature of the invention.

I claim 1. In a candle-molding machine, a heating ter from and out ofthe mold-chest, all said parts being arranged and adapted to operatesubstantially as described, and for the purposes set forth.

2. In a candle-molding machine, the combination, with the molding anddischarging mechanism, of a holding mechanism consisting of receivingsheaths or tubes 3, secured to the top of the molding-machine, and aspring holding-flap 4, pivotedto one side of said sheaths and adapted tohold the candle as it passes from the mold, substantially as described,and for the purposes set forth.

The foregoingspecification of my improved candle-molding machine signedby me this 19th day of August, 1891.

ALEXANDRE ALPIIONSE ROYAU.

Witnesses:

ROBT. M. HooPER, ALBERT MOREAUX.

